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Hobbs and J. A. Wesson, " Heat flow through a Langmuir sheath in the presence of electron emission," Plasma Phys. 9 ... " Effect of surface produced secondary electrons on the sheath structure induced by high-power microwave window breakdown," Phys. Plasmas 18 ... PEF has found widespread application for food processing 166-170 166. S.
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Assisted microwave heating. Microwave drying of the oregano was performed at an operative frequency of 2450 MHz by the multimodal microwave cavity LBP 210/50 Microwave Oven 2300 W, InLand, USA ...
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Jan 1, 2022Microwave (MW) treatment is a nonionizing electromagnetic physical processing technique that has been commonly used in the human food industry [ 16] due to its quick and energy-efficient heating for the improvement of food product quality [ 17 ], while having little or no negative impact on the chemical composition of the foods.
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Sugarcane (Saccharum officinarum) bagasse (SCB) is a biomass of agricultural waste obtained from sugarcane processing that has been found in abundance globally. Due to its abundance in nature, researchers have been harnessing this biomass for numerous applications such as in energy and environmental sustainability. However, before it could be optimally utilised, it has to be pre-treated using ...
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Microwave soil heating deactivates weed seeds; however, in many modern agricultural settings, weed seeds are mostly found in the top 1-2 cm of the soil profile. Until recently, microwave soil heating has been achieved using various antennas, which project the microwave energy deeply into the soil.
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We can identify three types of electromagnetic radiation that used in infrared devices. Shorter infrared waves coincide with hotter temperatures. 1. Short-wave infrared radiation (IR-A): 0.78 to 1.5 microns. Short-wave infrared radiation is the most intense and has a prominent red-orange colour. This type often appears in patio heaters.
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In those applications, microwave heating demonstrates significant advantages over conventional methods in reduced processing time and less environmental impacts. This book is comprised of eight chapters within three parts highlighting different aspects covering both the basic understandings and the advanced applications.
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Composite materials with carbon nanotube and graphene attachments have been regarded as promising prospects. Carbon nanocomposites have gained considerable interest in different fields including biomedical applications due to its exceptional structural dimensions and outstanding mechanical, electrical, thermal, optical, and chemical characteristics. The significant advances made in carbon ...
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The development of solid pellet technology for molten salt is a key issue in the heat transport processing. The apathite phosphate, slurry salt in the slime-salt bath mixes was investigated under microwave radiation heating to result in insoluble sorbent fines dissolved in porous basket.
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Application of Microwave Heating to Recover Metallic Elements from Industrial Waste By Joonho Lee and Taeyoung Kim 3,845 2 15. Microwave Heating for Emolliating and Fracture of Rocks By Aleksandr Prokopenko 4,377 3 7 16. Use of Induction Heating in Plastic Injection Molding By Udo Hinzpeter and Elmar Wrona 9,059 17.
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it is possible that microwave technologies shall provide for: (i) a reduction in waste volume, (ii) rapid heating, (iii) selective heating, (iv) enhanced chemical reactivity, (v) the ability to treat waste in-situ, (vi) rapid and flexible processes that can also be controlled remotely, (vii) ease of control, (viii) energy savings, (ix) overall .
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Many technologies use microwave (MW) heating instead of the traditional heating process. MW heating provides a high efficiency in converting electrical energy into electromagnetic energy, which is associated with the high-performance factor of modern magnetrons, i.e., 86% and 80% at the frequencies of 915 and 2450 MHz, respectively.
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Pretreatment of Crop Residues by Application of Microwave Heating and Alkaline Solution for Biofuel Processing: A Review Renewable Resources and Biorefineries, 2019 Lope Tabil Jr.
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Pretreatment of Crop Residues by Application of Microwave Heating and Alkaline Solution for Biofuel Processing: A Review doi 10.5772/intechopen.79103 Full Text Open PDF Abstract Available in full text Date January 23, 2019 Authors Obiora S. Agu Lope G. Tabil Venkatesh Meda Tim Dumonceaux and Edmund Mupondwav Publisher IntechOpen
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Microwave heating has found many applications ranging from the microwave ovens in kitchen to heat food, to a sterilization apparatus for medical treatment, to materials processing in the various fields.
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Microwave Heating Applications in Mineral Processing By S.M. Javad Koleini and Kianoush Barani Get PDF (576 KB)
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Feb 4, 2021Realizing microwave-assisted mechanical rock cutting using the microwave-induced hard rock fracturing technique can prolong the mechanical life and improve the efficiency of rock-breaking operations.
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Microwave (MW) treatment is a nonionizing electromagnetic physical processing technique that has been commonly used in the human food industry [ 16] due to its quick and energy-efficient heating for the improvement of food product quality [ 17 ], while having little or no negative impact on the chemical composition of the foods.
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Microwave radiation heating (MRH) is one of such potential improvements. Microwave radiation (MR) is selective, meaning that it interacts exclusively with materials having specific dielectric properties, allowing microwaves to penetrate directly into the microbial biomass.
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Under suitable heating conditions, TG−FTIR pyrolysis of a coal sample in a stream of inert gas has been shown to expel quantitatively all of the organic oxygen in the form of H 2 O, CO 2, and CO, and consequently, this technique can be effectively applied for determining the total oxygen content.
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AmazonならThe Development and Application of Microwave Heatingが。にAmazonならポイントが。Cao, Wenbinほか、おぎはおけも。
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Ultrasound can be used in food processing for various operations like extraction, drying, filtration, emulsification, homogenization, etc. The various processes where ultrasound can be applied is listed in Table 1. Table 1 Application of Ultrasound for various food processing operations. Open in a separate window 2.1.
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and routine use for both home and industrial applications. In industrial field, microwave heating has been used for many applications, including food processing and preservation, bleaching, pasteurization, and sterilization (Decareau, 1985; Farag et al., 2001; Knutson et al., 1987). Numerous advantages boosted the use of microwave heating ...
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A free online edition of this book is available at Additional hard copies can be obtained from [email ... Block diagram of Microwave Processing Unit Microwave Heating 6 Fig. 1. (b) Construction and working of Magnetron ... Yoshikawa, N. (2010). Fundamentals and applications of microwave heating of metals, Journal of Microwave ...
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Compared to the conventional heating method, the microwave instantaneously generates heat inside the absorber material, rather than heating the outside surface and slowly conducting it inside [ 30 ]. Thank to these advantages, microwave has found applications in pyrometallurgical processes, such as metal recovery [ 26, 28, 31, 32, 33 ].
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In microwave applications, microwaves can transport energy to the entirety of the material, as energy affects the internal structure. This is the main reason why microwave drying systems shorten drying times. 3.2. Energy Consumption
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of solid waste processing, application of iron powder as a microwave absorber agent increases an effectiveness of material degradation, meanwhile decreasing a treatment residence time (Gedam & Regupathi, 2012). In case of rubber-iron mixture, particles of iron powder can be rapidly heated by microwave irradiation up to 700 °C (Yoshikawa et
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Microwave-assisted pyrolysis (MWAP) was recently described as an efficient and cleaner means of producing SC with referred frequencies in the ranges 915 to 2450 MHz [ 24 ]. Despite a cleaner process, it is often limited due to the dielectric properties of SC [ 49 ].
Get priceThe sensor⿿s excellent performance in biological environments also makes them suitable for agricultural pest detection. Microwave-assisted technology in support of Objective 3. Microwave- assisted one pot chemical treatment under minimum amounts of solvent condition is a valuable technique compared with traditional chemical treatment.
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The microwave-assisted process was performed according to sequential heating steps, choosing different time-temperature programs; the reaction mixture has initially been ramped to a set temperature of 120 °C and then held to the fixed temperature before final cooling (till 40 °C).
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The information presented in Fig. 3 (based on SCOPUS data) suggests that China and India are the leaders in the number of published papers. In Ref. [], which provides the review of potential industrial applications involving microwave heating, the authors identified a number of issues, including the following: microwave heating is mainly used in laboratories for research purposes, but there is ...
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Several non-contaminating physical methods, such as microwave heating, ultrasound-assisted and hydrothermal processes or ball milling, frequently in combination with the use of natural precursors, are of major importance in the greener synthesis, as well as solventless and biosynthesis techniques.
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Histogram processing, Histogram equalization, Neighborhood processing, Spatial and Frequency domain methods. Current Research & Applications: Latest research topics in signal & Image processing for aerospace applications. 1: CSIR-National Aerospace Laboratories: CSIR-NAL: AcSIR-24-ID-005: 2: Inter-disciplinary / Cross-disciplinary
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Metal Oxide Powder Technologies The Metal Oxides Book Series Edited by Ghenadii Korotcenkov Forthcoming Titles Metal Oxide Powder Technologies, Yarub Al-Douri, 9780128175057 Palladium Oxides Material Properties, Synthesis and Processing Methods, and Applications, Alexander M. Samoylov, Vasily N. Popov, 9780128192238 Solution Processed Metal Oxide Thin Films for Electronic Applications, Zheng ...
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Microwave-assisted heating has been recently used for extracting nutrient components from food materials. ... S. and Azuma, J. (2011) Application of Microwave Technology for Utilization of Recalcitrant Biomass. In: Grundas, S., Ed., Advances in Induction and Microwave Heating of Mineral and organic Materials, IntechOpen, London, 697-722. https ...
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Susan Featherstone, in A Complete Course in Canning and Related Processes (Fourteenth Edition), 2015. 4.4.3 Microwave processing. Microwave processing, like ohmic heating, is an electrical heating system that destroys microorganisms via thermal effects.Frequencies of 950 and 2450 Hz are used to excite polar molecules that produce thermal energy and increase temperature.
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Microwave process sequence, time, and temperature are all important factors, and appropriate parameters need to be explored. Ultrasound can assist acid leaching removal of Fe impurities through the cracks. Under optimized conditions, the iron content can be reduced to below 0.167 ppmw with one single purification pass.
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Application of microwave energy was studied for gypsum treatment in industrial applications like gypsum plaster drying 30 or gypsum plaster production. 31 In spite of the obtained results, the authors acknowledged there was a lack of information about the effect of microwave fields on the gypsum-anhydrite system at different temperatures.
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Application of porous SiC as a heating element with the reported values of electrical resistivity and porosity; (A) image of rod-type commercial SiC heating elements (reproduced with permission from Ref. 2021 Brother Furnace), (B) temperature profile of electrical conductive SiC heating element/vessel as compared with microwave heated Pyrex ...
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Abstract: In this study, microwave-assisted heating is presented as a suitable method to transform the hematite and goethite contained in bauxite residue into magnetite, wüstite, and metallic iron, with a short processing time. The final target was the production of a sinter with strong magnetic
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